Use unique refs for RSA container example
Use unique refs for RSA container example

In a real world use of Barbican the secret refs in an RSA container
will all be different.  This CR changes the example that shows every
ref to be the same in favor of different refs to avoid confusion.

Change-Id: I6cd5c4202eb5623262cbf1485ea8a55680f37bed
cneill/barbican,openstack/barbican,MCDong/barbican,cloudkeep/barbican,MCDong/barbican,openstack/barbican,cneill/barbican,cloudkeep/barbican